CODEWITHSUNDEEP
pythonpython-3.xscikit-image
user3607022
user3607022

Reputation: 482

Reshaping png image read by skimage.imread return ValueError

It works fine using a 616x346 png image as input in the following code:

from skimage import io

image = io.imread('img.png')
image = image.reshape(image.shape[0] * image.shape[1], 3)

...but if I change the image dimensions to say 640x451, I get the error

ValueError: cannot reshape array of size 1154560 into shape (288640,3)

Any thouhts?

Upvotes: 0

Views: 425

Answers (1)

Sonal Agrawal
Sonal Agrawal

Reputation: 175

The shape of 640x451 image you are trying to reshape is (640, 451, 4) instead of (640, 451, 3). That's why you won't be able to convert it to (640*451, 3). Have a look at the output of image.shape in both the 616x346 and 640x451 cases. One workaround is to convert it to rgb from rgba first -

from skimage import io, color
image = io.imread('img.png')
image = color.rgba2rgb(image)
image = image.reshape(image.shape[0] * image.shape[1], 3)

Upvotes: 1

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